Got Tansy? Watch the video below to learn how, and why it’s important to control Tansy Ragwort in San Juan County.

Read the 2020 Annual Report!
SJCNWCB FINAL 2020 Annual Report
Our Mission
The mission of the San Juan County Noxious Weed Program is to focus on education, prevention, technical assistance and control of noxious weeds through voluntary compliance with RCW 17.10 and WAC 16-750. The Program offers:
- Early Detection and Rapid Response;
- Educational Materials & Programs;
- Noxious Weed Identification and Inventories;
- Site-specific Control Recommendations;
- Weed Control Assistance to Individuals, Organizations & Agencies;
- Weed Wrench Loans to San Juan County Residents.
Our Goals
The Goals of the Noxious Weed Board Are:
- To provide education and outreach services to public and private entities on topics related to invasive plants.
- To provide education-based enforcement and implementation of state and county noxious weed laws.
- To work closely with individuals, property owners, businesses, associations and government agencies in noxious weed control efforts.
- To eradicate all known Class A noxious weeds within the county.
- To Contain or control the spread of all state-designated or county-selected Class B and C noxious weeds within the county.
- To prevent the incursion of newly listed or unlisted weeds of concern on to county lands.
Introduction to Noxious Weeds in San Juan County
What’s Happening
- Feb 17 2023 Noxious Weed Annual Public Hearing
- 2023 SJC Noxious Weed List DRAFT
- Updated Noxious Weed Disposal Policy
- State Noxious Weed List Proposals Due by April 30
- 2022 SJC Noxious Weed List
- 2022 National Invasive Species Awareness Week (NISAW)
- Sportsmans Lake Project Meeting
- 2021 SJC Noxious Weed List
- The State Noxious Weed List-The Listing Process and How You Can Participate
- Noxious Weed List FAQs 2019
Resources
Brochures and other literature are available online or through the Weed Control Program at 376-3499.
- 2012 San Juan County Biocontrol Summary Table 2
- San Juan_Biocontrol Report 2005-2014
- Introduction to Washington Weed Law
- Photos, Written Findings & Weed Law: Washington State Noxious Weed Board
- King County Weed Identification Photos
- Citizens Guide to Noxious Weeds in King County (pdf)
- Livestock Poisoning Plants of Whatcom County
- Plants Poisonous to Livestock in the Western States
- Field Guide to Noxious & Other Selected Weeds of British Columbia
- PNW Weed Management Handbook
- WTU Herbarium Plant Identification
- Aquatic Weeds King County (pdf)
- Aquatic Plants and Fish Pamphlet WDFW (pdf)
- WA Native aquatic garden plants (pdf)
- Washington IPM Plan for Emergent Aquatic Weeds
- Garden Wise Western Washington Guide
- Non-native Plants of Pacific Coast Forests
- Native Plants for Western Washington Gardens
- Preventing the Spread of Invasive Plants: Best Management Practices
- Invasive Plant Treatment Guide US Forest Service
- San Juan Island Prairie Stewardship Guide
- San Juan Islands National Monument Scoping Report (BLM)
- Noxious Weeds in San Juan County Forests–A Brief Guide
- Protect Your Horses & Livestock From Toxic Plants
Related Organizations
- Washington State Noxious Weed Control Board
- Pacific Northwest Invasive Plant Council
- Washington Invasive Species Council
- National Invasive Species Council
- National Invasive Species Information Center
- San Juan Islands Conservation District
- San Juan County Parks, Recreation and Fair
- San Juan County Public Works
- San Juan County Land Bank
- Weed Research & Information Center
- California Invasive Plant Council
- Washington Native Plant Society
- San Juan Islands National Monument (BLM)
- San Juan Island National Historical Park (NPS)
- U.S. Fish & Wildlife Service, San Juan Islands and Washington Maritime Complex
- National Pesticide Information Center (NPIC) – Oregon State University
- California’s Plant Right (a resource guide for selecting non-invasive plants for your home landscape).

Try a Weed Wrench™
to eliminate Scotch Broom!
Need weed wrench instructions or info?
Weed wrenches may be checked out FOR FREE from the following sources:
Orcas – SJC Noxious Weed Board office in Eastsound (8 wrenches) (360) 376-3499
San Juan -WSU Extension-(2 wrenches) (360) 378-4414; SJC Public Works (360) 370-0500; SJC Land Bank (4 wrenches) (360) 378-4402
Lopez– Public Works Office (2 wrenches) (360) 370-0500
Lopez Land Bank -Amanda Wedow
(360-890-7447)
Purchase a Wrench at:
Uprooter (888) 801-0201
or (541) 226-9872
Grants Pass, OR 97528
Poison Hemlock
Poison Hemlock information
How to identify Poison Hemlock vs. other plants.
Noxious Weed Pamphlets
Information on identification, eradication or control (requires Adobe Acrobat Reader)
- SJC Blackberry Control 2020
- SJC Bull Thistle Control 2020
- SJC Canada thistle 2020
- SJC Clematis Control 2020
- Common Fennel brochure 2015
- Common Teasel brochure 2015
- English Ivy brochure 2014
- SJC Fennel Control 2020
- Giant Hogweed brochure
- SJC Gorse Control 2020
- SJC Hawthorn Control 2020
- SJC HerbRobert Control 2020
- Hoary Cress poster 2015
- Himalayan & Evergreen Blackberries 2014
- Italian Arum brochure
- Prohibited Plants & Seeds of Washington State
- Scotch (Scot’s) Broom brochure 2014
- Selected Knapweeds of Washington
- Spurge Laurel poster 2015
- Tansy Ragwort brochure 2015
- Washington’s Weed Law brochure 2015
- Yellow Archangel brochure 2015
- SJC YellowflagIris Control 2020

San Juan County Extension
221 Weber Way
Friday Harbor, WA 98250
360-378-4414
Please contact us if you have any questions or concerns. Thank you!
Orcas Island, Jason Ontjes, NW Program Coordinator- (360)376-3499 or jasono@sanjuanco.com
Friday Harbor, Amber Michele Smith, NW Field Specialist- (360)338-5017 or ambers@sanjuanco.com